He was able to gain knowledge through hard work.

He is making an effort every day to pass the exam.

He is endeavoring every day to pass the exam.

I'm always amazed by his extensive knowledge.

He is my best friend.

He is my best friend.

His goal was truly a miracle play.

He has a wealth of scientific knowledge and is always excited about new discoveries.

He says 'knowledge is power' and studies hard every day.

He is widely recognized as an intellectual in that field.